Stage_user_DK wrote:So lack of two times quality control then?
Maybe, or maybe the keyboard is OK and it is just you simply not liking it the way it is... (?) anyway if it is a one-time defect you can return it and get it fixed or replaced. If instead you don't like the shape & feel of that keybed there is not much you can do but change and buy a different stage piano.
PS: have you tried to compare to another, of the same model of course, at the shop, to be sure it is just your one having that problem?